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175 lines
5.3 KiB
Markdown
175 lines
5.3 KiB
Markdown
An XDG Desktop Portal (later called XDP) is a program that lets other
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applications communicate swiftly with the compositor through D-Bus.
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It's used for stuff like e.g. opening file pickers, screen sharing.
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On Wayland, it also requires an implementation. For Hyprland,
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you'd usually use `xdg-desktop-portal-wlr` (later called XDPW)
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Unfortunately, due to various reasons the -wlr portal is inferior
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to the KDE or Gnome ones.
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In order to bridge the gap, Hyprland has its own fork of XDPW that
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has more features, called [xdg-desktop-portal-hyprland](https://github.com/hyprwm/xdg-desktop-portal-hyprland).
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(later called XDPH)
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{{< hint type=important >}}
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You don't **need** XDPH. Hyprland will work with XDPW, but XDPH has more features, like e.g.
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window sharing.
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XDPH will work on other wlroots-based compositors, although limited to the XDPW features (other
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will be disabled)
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{{< /hint >}}
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## Installing
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{{< tabs "uniqueid" >}}
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{{< tab "Arch Linux" >}}
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```plain
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pacman -S xdg-desktop-portal-hyprland
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```
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or, for -git:
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```plain
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yay -S xdg-desktop-portal-hyprland-git
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```
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{{< /tab >}}
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{{< tab "Gentoo" >}}
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## Unmask dependencies
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### /etc/portage/profile/package.unmask
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```plain
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dev-qt/qtbase
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dev-qt/qtwayland
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dev-qt/qtdeclarative
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dev-qt/qtshadertools
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```
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## Apply necessary useflags
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### /etc/portage/package.use
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```plain
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dev-qt/qtbase opengl egl eglfs gles2-only
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dev-qt/qtdeclarative opengl
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sys-apps/xdg-desktop-portal screencast
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```
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## Unmask dependencies and xdph
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### /etc/portage/package.accept_keywords
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```plain
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gui-libs/xdg-desktop-portal-hyprland
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dev-qt/qtbase
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dev-qt/qtwayland
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dev-qt/qtdeclarative
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dev-qt/qtshadertools
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```
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btw those are the useflags that I have tested, you could also test others.
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## Installation
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```sh
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eselect repository enable guru
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emaint sync -r guru
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emerge --ask --verbose gui-libs/xdg-desktop-portal-hyprland
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```
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{{< /tab >}}
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{{< tab "Manual" >}}
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See [The Github repo's readme](https://github.com/hyprwm/xdg-desktop-portal-hyprland).
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{{</ tab >}}
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{{< /tabs >}}
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{{< hint type=important >}}
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It's recommended to uninstall any other portal implementations to avoid conflicts with the `-hyprland` or `-wlr` ones.
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`-kde` and `-gnome` portals are known to cause issues.
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The `-kde` portal is unfortunately a hard dependency of `plasma-integration` in Arch Linux. To uninstall it,
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run the command `pacman -Rnsdd xdg-desktop-portal-kde`, which skips all dependency checks.
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Both `-wlr` and `-hyprland` installed at once will also cause conflicts. Choose one and uninstall the other.
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To keep any incompatible portal installed the relvant `.portal` file can be moved out of
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'/usr/share/xdg-desktop-portal/portals/' to temporarily disable the portal. A script and the `exec-once`
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directive can be used to automate this process at startup:
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```bash
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#!/bin/sh
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# usage: $0 portal-name [enable/disable]
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# args:
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# portal-name: the name of the .portal file in /usr/share/xdg-desktop-portal/portals/ without the extension
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# [enable/disable]: optional - whether to move the file into $ENABLED_PORTAL_DIR to enable it,
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# or to move it into $DISABLED_PORTAL_DIR to disable it. The portal will be toggled
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# if this argument is omitted.
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ENABLED_PORTAL_DIR="/usr/share/xdg-desktop-portal/portals"
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# needs to be created manually
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DISABLED_PORTAL_DIR="/usr/share/xdg-desktop-portal/disabled-portals"
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is_portal_enabled() {
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[ -f "$ENABLED_PORTAL_DIR/$1.portal" ]
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}
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is_portal_disabled() {
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[ -f "$DISABLED_PORTAL_DIR/$1.portal" ]
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}
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enable_portal() {
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mv "$DISABLED_PORTAL_DIR/$1.portal" "$ENABLED_PORTAL_DIR/$1.portal"
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}
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disable_portal() {
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mv "$ENABLED_PORTAL_DIR/$1.portal" "$DISABLED_PORTAL_DIR/$1.portal"
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}
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PORTAL=$1
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ENABLE=${2:-$(is_portal_enabled "$PORTAL" && echo "disable" || echo "enable")}
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if [ "$ENABLE" = "enable" ]; then
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is_portal_disabled "$PORTAL" && enable_portal "$PORTAL"
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else
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is_portal_enabled "$PORTAL" && disable_portal "$PORTAL"
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fi
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```
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The incompatible portal can then be re-enabled with the same script inside the autostart mechanisim of the intented
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environment. Keep in mind that the directory for disabled portals needs to be created manually and this script needs
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to have access to /usr/share/xdg-desktop-portal/portals/ and the disabled directory.
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{{< /hint >}}
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## Usage
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Should start automatically.
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The most basic way of telling everything is OK is by trying to screenshare anything, or
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open OBS and select pipewire source. If XDPH is running, a qt menu will pop up asking you
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what to share.
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If it doesn't, and you get e.g. slurp, then XDPW is launching. In that case, try removing XDPW.
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XDPH will work on other wlroots compositors, but features available only on Hyprland will not work
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(e.g. window sharing)
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For a nuclear option, you can use this script and `exec-once` it:
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```sh
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#!/bin/bash
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sleep 1
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killall -e xdg-desktop-portal-hyprland
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killall -e xdg-desktop-portal-wlr
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killall xdg-desktop-portal
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/usr/lib/xdg-desktop-portal-hyprland &
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sleep 2
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/usr/lib/xdg-desktop-portal &
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```
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adjust the paths if incorrect.
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## Debugging
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If you get long app launch times, or screensharing does not work, consult the logs.
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`systemctl --user status xdg-desktop-portal-hyprland`
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if you see a crash, it's most likely you are missing `qt6-wayland` and/or `qt5-wayland`.
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if you don't, make _sure_ you don't have `-kde` or `-gnome` installed. Only `-gtk`
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will work with `-hyprland` or `-wlr` on Hyprland.
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